This is the mail archive of the gdb-patches@sourceware.org mailing list for the GDB project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
Date: Sun, 22 Feb 2009 19:00:14 -0800 From: Joel Brobecker <brobecker@adacore.com>
Surprisingly, this feature is not documented yet. The documentation mentions "info registers regname", but not "info registers regno". Would you mind adding a line or two and sending a (separate) patch to this list? Eli is the documentation guru...Should this feature even exist? This is a different "$1" than anywhere else in GDB you might type that...I was asking myself this question, but there is explict code in GDB to handle that case, so I thought that this was deliberate. On the other hand, I also thought that this was a very cool way of knowing what register number NUM actually is. For instance, on x86, register number 3 is (drums...) ebx:
(gdb) info reg $3 ebx 0xb7e84ff4 -1209511948
With x86, the number of registers is fairly limited, but there are other processors where this isn't the case. The CPU that gave me the largest number of pimples so far is ia64...
So I found that the above syntax was a cool thing to know about and worth retaining.
I agree. Documenting it would be good, thanks.
Aleksandar Ristovski QNX Software Systems
* gdb.texinfo (info registers): Add a note about permitted info registers regno syntax.
Index: gdb/doc/gdb.texinfo =================================================================== RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v retrieving revision 1.558 diff -r1.558 gdb.texinfo 7436a7437,7442 > > Note that syntax using register number (@var{regno}) in place of > @var{regname} is also permitted. While for some architectures (like x86) > @var{regno} has a meaning only within @value{GDBN} context and is > subject to change in different @value{GDBN} versions, others (like mips) > explicitly define them.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |